This circuit is from a 1990s publication by William Sheets. The circuit consists of a stage whose gain is adjusted according to the signal intensity.
We found this circuit in an English publication from 1995. The Hall sensor used is a component of the...
This digital buffer was found in the November 1993 issue of Electronics Now. The power supply...
This configuration with FET and Unijunction can be found elsewhere on this site. The JFET admits...